97 lines
3.5 KiB
Ruby
97 lines
3.5 KiB
Ruby
# -*- coding: utf-8 -*- #
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# frozen_string_literal: true
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module Rouge
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module Lexers
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class Mathematica < RegexLexer
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title "Mathematica"
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desc "Wolfram Mathematica, the world's definitive system for modern technical computing."
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tag 'mathematica'
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aliases 'wl'
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filenames '*.m', '*.wl'
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mimetypes 'application/vnd.wolfram.mathematica.package', 'application/vnd.wolfram.wl'
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# Mathematica has various input forms for numbers. We need to handle numbers in bases, precision, accuracy,
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# and *^ scientific notation. All this works for integers and real numbers. Some examples
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# 1 1234567 1.1 .3 0.2 1*^10 2*^+10 3*^-10
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# 1`1 1``1 1.2` 1.2``1.234*^-10 1.2``1.234*^+10 1.2``1.234*^10
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# 2^^01001 10^^1.2``20.1234*^-10
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base = /(?:\d+)/
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number = /(?:\.\d+|\d+\.\d*|\d+)/
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number_base = /(?:\.\w+|\w+\.\w*|\w+)/
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precision = /`(`?#{number})?/
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operators = /[+\-*\/|,;.:@~=><&`'^?!_%]/
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braces = /[\[\](){}]/
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string = /"(\\\\|\\"|[^"])*"/
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# symbols and namespaced symbols. Note the special form \[Gamma] for named characters. These are also symbols.
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# Module With Block Integrate Table Plot
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# x32 $x x$ $Context` Context123`$x `Private`Context
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# \[Gamma] \[Alpha]x32 Context`\[Xi]
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identifier = /[a-zA-Z$][$a-zA-Z0-9]*/
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named_character = /\\\[#{identifier}\]/
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symbol = /(#{identifier}|#{named_character})+/
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context_symbol = /`?#{symbol}(`#{symbol})*`?/
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# Slots for pure functions.
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# Examples: # ## #1 ##3 #Test #"Test" #[Test] #["Test"]
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association_slot = /#(#{identifier}|\"#{identifier}\")/
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slot = /#{association_slot}|#[0-9]*/
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# Handling of message like symbol::usage or symbol::"argx"
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message = /::(#{identifier}|#{string})/
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# Highlighting of the special in and out markers that are prepended when you copy a cell
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in_out = /(In|Out)\[[0-9]+\]:?=/
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# Although Module, With and Block are normal built-in symbols, we give them a special treatment as they are
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# the most important expressions for defining local variables
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def self.keywords
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@keywords = Set.new %w(
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Module With Block
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)
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end
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# The list of built-in symbols comes from a wolfram server and is created automatically by rake
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def self.builtins
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load File.join(__dir__, 'mathematica/builtins.rb')
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self.builtins
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end
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state :root do
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rule %r/\s+/, Text::Whitespace
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rule %r/\(\*/, Comment, :comment
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rule %r/#{base}\^\^#{number_base}#{precision}?(\*\^[+-]?\d+)?/, Num # a number with a base
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rule %r/(?:#{number}#{precision}?(?:\*\^[+-]?\d+)?)/, Num # all other numbers
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rule message, Name::Tag
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rule in_out, Generic::Prompt
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rule %r/#{context_symbol}/m do |m|
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match = m[0]
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if self.class.keywords.include? match
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token Name::Builtin::Pseudo
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elsif self.class.builtins.include? match
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token Name::Builtin
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else
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token Name::Variable
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end
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end
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rule slot, Name::Function
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rule operators, Operator
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rule braces, Punctuation
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rule string, Str
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end
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# Allow for nested comments and special treatment of ::Section:: or :Author: markup
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state :comment do
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rule %r/\(\*/, Comment, :comment
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rule %r/\*\)/, Comment, :pop!
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rule %r/::#{identifier}::/, Comment::Preproc
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rule %r/[ ]:(#{identifier}|[^\S])+:[ ]/, Comment::Preproc
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rule %r/./, Comment
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end
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end
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end
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end
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